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Building the Movie > Building the Movie - Pg. 149

the name or icon of the effect out of the transitions list and down onto the Movie Track. Either way, drag until your cursor is between the two clips that you want joined by this transition; iMovie pushes the right-hand clips out of the way to make room. (Most transitions must go between two clips, and so they can't go at the beginning or end of your Movie Track. The exceptions are the Fade and Wash effects.) Then a special transition icon appears between the clips, as shown in Figure 6-3. Tip: The tiny triangles on a transition icon or bar let you know what kind of transition it is. A pair of inward- facing triangles is a standard transition that melds the end of one clip with the beginning of the next. A single, right-facing triangle indicates a transition that applies to the beginning of a clip, such as a fade-in from black (or wash-in from white). A single, left-facing triangle indicates a transition that applies to the end of a clip (such as a fade or wash out). Creating a Transition Figure 6-3: Top: In the Clip Viewer, a transi- tion shows up as a slide-like icon. Bottom: In the Timeline Viewer, you get a bar whose width indi- cates its duration. Each transition has its own red progress bar that creeps along the bottom edge of the icon. After the clip has been fully rendered, this added strip beneath the icon disappears, and the transition is ready to play. (The Movie Track's top edge identifes the transition type and its duration when the transition icon is highlighted.) Transition icon Red progress bar (Clip Viewer) Red progress bar (Timeline Viewer) Almost immediately, a tiny red line begins to crawl, progress-bar-like, along the lower edge of this icon (see Figure 6-3). In the terminology of DV editors everywhere, the Mac has begun to render this transition--to perform the thousands of individual calculations necessary to blend the outgoing clip into the incoming, pixel by pixel, frame by frame. Whether it's an iMovie transition or a scene in a Pixar movie, rendering always takes a lot of time. In iMovie, the longer the transition you've specifed, the longer it takes to render. You should feel grateful, however, that iMovie renders its transitions in a matter of minutes, not days (which complex Hollywood computer-generated effects often require). Furthermore, iMovie lets you continue working as this rendering takes place. You can work on the other pieces of your movie, import new footage from your camcorder, or chapter6:transitionsandeffects 149